476 Mr. H. Eltringham nn some Experiniemts on 



new lizards, presumably hungry, was given an ivy-fed larva 

 of rhomboidarla, it bit it and then dropped it, going- 

 through violent contortions and rubbing its nose on the 

 pebbles. A little while later it was given a larva which 

 had been fed on apple for four days. It ate it without 

 any hesitation. It was then offered tlie ivy-fed larva 

 which it had before refused, and after some hesitation it 

 swallowed it, though evidently without any keeimess. 

 Another of the new lizards was then offered an ivy-fed 

 larva. It bit it and dropped it suddenly, rubbing its nose 

 on the pebbles. It then took another bite and put it out 

 again, opening its jaws wide and then rubbing its nose on 

 the floor. After a while it was induced to try an apple-fed 

 example, which it swallowed rapidly after a short hesita- 

 tion. The ivy-fed larva previously refused was then again 

 offered, but it would not touch it. 



One of the original lizards ate a larva of betularia 

 and one of lunaria, but smelt and refused an ivy-fed 

 rhomboidaria. 



September 10. — A large lizard ate an ivy-fed larva with 

 considerable hesitation, putting it out four times. This 

 lizard had had nothing to eat for some days. After this it 

 ate another ivy-fed larva with rather less hesitation. A 

 third was seized by it and another lizard. They fought 

 over it furiously, and the caterpillar was pulled in two and 

 each swallowed its own piece. The competition apparently 

 had something to do with the result, as immediately after 

 the second lizard bit another larva and dropped it, rubbing 

 its nose violently. A third lizard came up and examined 

 the larva, when the other seized it again but dropped it 

 like a hot coal. Another lizard twice examined and 

 refused one of these larvae. 



September 11. — A lizard ate rapidly and without 

 hesitation two larvae of hetularia and a "green-bottle." 

 An ivy-fed rhomhoidaria was then offered, but it examined 

 it carefully and refused to touch it. 



September 12. — An ivy-fed larva was offered to one of 

 the lizards. It seized it at once and nearly managed to 

 swallow it, but suddenly ejected it and rubbed its nose 

 violently on the pebbles. After this it would not even 

 eat a " blue-bottle," and an apple-fed rhomhoidaria was 

 disregarded. One of the large lizards was given a 

 rhomboidaria larva which had been fed on apple for about 

 a week. It seized it and ate it at once. It was then 



